Electric generator and motor.



PATENTED SEPT. 17, 1907.

NoA 866,286.

A. S. KBTZ. ELECTRIC GENERATOR AND /Q'IGRI APPLIOATIN FILED JAN.12.1905.

2 SHEBTSfSHEBT 1.

No. 866,286A PATENTE-D SEPT. 17, 1907.

A. S. KROTZ. ELECTRIC GENERATOR AND MOTOR.

APPLICATION FILED JAN. 12, 1905.

2 SHEETS-SHEET 2 akmus? a UNITED STATES PATENT oEEIoE.

ALVARO S. KROTZ, Oll SPRINGFIELD, OHIO, ASSIGNOR OF ONE-HALF TO PAUL A. FflAlrlV. Ol" SPRINGFIELD, OHIO.

ELECTRIC GENERATOR AND MOTOR.

Specification of Letters Patent.

Patented'Sept. 17, 1907.

Application Sled January 12, 1905. Serial No. 240,719.

lo all 'it/.10m 'it muy concern:

le it known that l. Ain/Ano S. Kiro'rz, a citizen oi the United States, residing nt Siii'iiiglield7 in the County of Clzirk and S-.ile oi' tibio, have invented eertnin new und useful luiprorements iu lileetrie (ener .itors .tnd iilotors, ol` whieh the following is a speeiiealion.

My invention rel-tites to improvements in elet-trie gein-rulers und motors. und the ohjeet ol my inventionis to provide niennsv l'or overeoniing :iriii-.itiire re-aetion in inzieliines of this ehau'aeler, and thus secure sparkl ThisI liieeoniplisli by iorniing the inngnetie eores in two or more legs sep-united by .simens through or eeross wliieh the lines of inagnetio ioree will not pass; and lurther, by ioitit'ying or increasing the lines of ningiietie t'oree in that purl. of the magnet which is farthest troni the pole of the armature upon wliieh the lines of magnetic l'oree from the field magnets are exerting their strongest inilueiiee. v

In the accompanying drawings a device embodying a simple forni of my invention is illustrated, Figure l showing a generator or motor in a more or less diagramniatie manner to whieli niy invention is applied. Fig.

2 is an end View oi' one of the field magnets removed',

and Fig. 3 is n. side elevation ot' the magnets of :i slightly niodiled construction. Fig. ll is it plan view el the windings slioivnin Fig. IS.

Lilie parts are represented by similar diameters of rel'ereiiee in the several views.

' ln the drii.\\'ings u Il represent a niotor or generator ii'ziine, the lield nigigiiets, and e the nriiinlure. These lield niiigiiets, l), nre ezieh loi-ined with tivo or iuore sepnruie legs, bl, lf". :ind These sever-.il legs iorin the inagnetie eoi'e ot the tield eoilw7 d, but. they are sepurztted one l'ioni the other by spur-es. Il rl!7 sullieient io prevent the [low oi the lines ol' ningiietii: i'oree :ieross l'roni one length to the. ot lier, these lines beingr thus f'oiiiiielled to lloiv longitudinally through the legs und oonseiiuently more nearly in right lines to the :triiintiire indes, being.: distributed overa lni'ger sui'iaeo oi the :irniuture und eoiisequentiy ereutiiig .i larger zone oi ningnetie iiitluenee oi substantially the suine strength.

As that. portion of the iield iiiugnet core whit-li is nearest to tlnit pole ofthe armature which is being :ittrncted thereto will present the greatest number of lines of magnetic force, by dividing the pole We have two paths, which eauses this line' of magnetic force to be divided and approach the armature through a Wider zone. To niore evenly distribute these lines of magiietie fore-e i also provide lor iortiying or inereusing the.

miigneti(4 lines through the succeeding legs of the field magnet by giving to these legs un additional winding of one nr more turns of the lield eoils7 us shown :1t c. lf more than two legs aroused, un addilionni winding is placed on each succeeding one, :is .shown lit uniid c/ in lig. 3.

ln series wound generators or magnets the winding is Started around the ziiixi ary legs. lt' more than two are used two turns are given around the last one7 then one turn around the lirst one, :ind then the eoil eontinued upon :ill of the legs in the usual manner. Thus, those legs or pui-ts ofthereore whieh troni the inlluenee of the armature would be robbed oi their lines oi inagnetic force, are fortified und the lines .1re eaused to pass through each oi the sur-e ssivo legs with substantially the saine magnetic ioree and the armature reaction overcome, and the necessity ,tor shifting the brushes into the shifting t'ields of the magnetic lields is obviated and spziikiiigol the r'oininutatoi under moving legs prevented und the ellieieney Aof the generator thusniiiteri-.illy increased,

It will be obvious that the opening between the legs in the armature core need not extend entirely to the `end. The legs, or that part ol the core which lies next;

The invention is notconlined to tiny speeial form of motor or generator but is applicable to any orin of niotor or generator to which the construction is adapted,

either direet eurrent or alternating current devices.A llaving thus deseribed my invention, I elaine-- iiets toi-ined willi two or niort` sections or legs, one or nuire olf snnl lees be'iuf,r provided willi `:iddtioiiul eotls :ind suid legs liavirig'tlie :iildtonnl eoils-lieing oi siiiullei ili=iiii eter to eonipensute t'or the :nldilionzil coils, :ind inniii coils extending;- :ironinl :ill of snid lees, sulistzintialli :is und for ilie buiiiose sbeeilieil.

2. lnv :i ninehine sueli :isl :Musei-liteit, :iii eleeii'o-ininnei. liziv'niu iivii legs oi' sections. one ot` suiit legs oil seelions Iieilie; Iliiiiiieil lliziii the other. :in inner eoil oi" siniillei' diA :inietei' :iroliinl sziid tliinliei le"lv to t'oi'iii nn :irlrlitonnl or .nniitenieuinl wiiidiiig'aiiout v'tiieli the iiisin enit of the nuig'iiet, ,ius es to Si e :iddilionzil inzienelie power to the fee' or pole seetioii whose, iiin'ziiele lines :ire reduced by :ii'ninlure re-netion.isiilistiinttutti' :is snee'ilied.

ln lestiniony wlnlieol, l lizii'e hereunto sel. iiiy lnind this Hh day ot' .mulini-y A. i). 1905.

ALVARO S. hltO'lZ.

Witnesses ems. I. WELCH, 11. LLEwi-:nriw WALKER. 

